CN208273300U - A kind of control circuit that colour temperature can be adjusted individually with light modulation - Google Patents
A kind of control circuit that colour temperature can be adjusted individually with light modulation Download PDFInfo
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- CN208273300U CN208273300U CN201820767403.2U CN201820767403U CN208273300U CN 208273300 U CN208273300 U CN 208273300U CN 201820767403 U CN201820767403 U CN 201820767403U CN 208273300 U CN208273300 U CN 208273300U
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Abstract
The utility model relates to the control circuits that a kind of colour temperature and light modulation can be adjusted individually, including LED and two different switch controller of controllable silicon dimmer, light modulation constant-current drive circuit, chip power supply circuit, the color temperature controlling circuit for adjusting duty ratio, two groups of colour temperatures, the input terminal of the controllable silicon dimmer connects city's low frequency ac, the output end of controllable silicon dimmer is divided into two-way, it is connect all the way with the input terminal of light modulation constant-current drive circuit, the input terminal connection of another way and chip power supply circuit；The two-way output end of light modulation constant-current drive circuit is connect with two groups of LED respectively, the output end of chip power supply circuit and the input terminal of color temperature controlling circuit connect, the two-way output end of color temperature controlling circuit is connect with two switch controllers respectively, and two switch controllers are separately connected two groups of LED.The adjustable colour temperature of the utility model, can also dim in the case where not changing colour temperature, and the adjustable range of colour temperature is wide, suitable for the light modulation under constant colour temperature.
Description
Technical field
The utility model relates to lighting technical fields, refer specifically to a kind of control circuit that colour temperature can be adjusted individually with light modulation.
Background technique
Conventional incandescent generally use it is silicon-controlled dimmed, mixed colours, be by silicon-controlled adjusting
Device changes the variation of input voltage to the cut phase of alternating current sine wave, to change the electric current of tungsten wire, and then adjusts
The bright dark and colour temperature of tungsten wire.As conventional incandescent is replaced by LED light, met the tendency of using the LED light of traditional controllable silicon dimmer
And give birth to, since the colour temperature of LED is small with the variation of electric current, so controllable silicon dimmer is difficult to adjust the colour temperature of LED.It is adopted to reach
With the silicon-controlled purpose for adjusting LED colour temperature, using two groups of different-colours and the LED lamp bead of different conducting voltages in current techniques,
When controllable silicon dimmer adjusts supreme pressure from low pressure, the LED lamp bead group of low pressure conducting is first bright, and low-voltage LED lamp bead group colour temperature is presented,
As voltage increases, the LED lamp bead group of high voltage conduction begins to turn on and gradually brightens, and thus shows the mixed of two groups of LED lamp beads
Colour temperature is closed, until two groups of LED lamp bead all lights and reaches stable color temperature, finally can obtain height by closing low-voltage LED lamp bead group
Press LED lamp bead group colour temperature.It is this light modulation, toning mode be brightness and colour temperature while adjusting, colour temperature while adjusting brightness
Also it can change.So for certain occasions for needing color temperature constant, it is difficult to adjust brightness under constant colour temperature.
Utility model content
In view of above-mentioned the deficiencies in the prior art, the utility model provides a kind of colour temperature and light modulation and can individually adjust
Control circuit, have the function of that colour temperature is individually adjusted and dimmed and individually adjust, and can realize tune under constant colour temperature
The purpose of light.
To achieve the goals above, the technology employed by the present utility model is
The control circuit that a kind of colour temperature and light modulation can be adjusted individually, including controllable silicon dimmer, light modulation constant-current drive circuit,
LED and two different switch control of chip power supply circuit, the color temperature controlling circuit for adjusting duty ratio, two groups of colour temperatures
The input terminal of device, the controllable silicon dimmer connects city's low frequency ac, and the output end of controllable silicon dimmer is divided into two-way, all the way
It is connect with the input terminal of light modulation constant-current drive circuit, the input terminal connection of another way and chip power supply circuit；Dim constant current driving
The two-way output end of circuit is connect with two groups of LED respectively, the output end of chip power supply circuit and the input terminal of color temperature controlling circuit
Connection, the two-way output end of color temperature controlling circuit are connect with two switch controllers respectively, and two switch controllers are separately connected
Two groups of LED.
The controllable silicon dimmer uses TRIAC light modulator.
The light modulation constant-current drive circuit includes over-voltage over-current protection circuit, current rectifying and wave filtering circuit, RC holding circuit and opens
Close conversion circuit.
The chip power supply circuit includes rectifier diode D2, constant current tube U1 and zener diode DZ1, the input terminal of electric current
The anode of rectifier diode D2 is connected, the cathode of rectifier diode D2 passes through 1 foot of resistance R8 connection constant current tube U1, constant current tube U1
2 feet wherein connect the input terminal of color temperature controlling circuit all the way, the 2 foot another ways of constant current tube U1 are grounded by capacitor C9；Constant current
3 feet of pipe U1 are connected to the cathode of zener diode DZ1 by resistance R13, and the anode tap of zener diode DZ1 is with capacitor C9's
Ground terminal is connected, and the cathode terminal of zener diode DZ1 is connected to the ungrounded end of capacitor C9, and the cathode terminal of rectifier diode D2 is logical
Cross electrolytic capacitor CE4 ground connection.
The color temperature controlling circuit includes MCU controller U3, switch, resistance and capacitor, and 1 foot of MCU controller U3 is wherein
It is connected all the way with the 2 foot output ends of constant current tube U1 in chip power supply circuit, the 1 foot another way of MCU controller U3 passes through capacitor C10
Be connected with 8 feet of U3,2 feet of MCU controller U3 pass through resistance R21 all the way and are connected with 1 foot of U3, the 2 foot another ways of U3 with open
The connection of S1 input terminal is closed, 3 feet of U3 are wherein connected by 1 foot of resistance R23 and U3 all the way, the 3 foot another ways and switch S2 of U3
Input terminal connection, 4 feet of U3 are hanging, and 5 feet of U3 connects with the input terminal of one of switch controller, 6 feet of U3 with separately
The input terminal of an outer switch controller connects, and 7 feet of U3 are wherein connected by 1 foot of resistance R19 and U3 all the way, 7 feet of U3
Another way is connect with the input terminal of switch S3, and the output end of switch S1, switch S2 and switch S3 are grounded, the 8 feet ground connection of U3.
The model BP3256C of the MCU controller U3.
Two groups of switch controllers are respectively first switch controller and second switch controller, each switch controller
It include metal-oxide-semiconductor and resistance, the drain electrode of metal-oxide-semiconductor Q1 is connect with the cathode of first group of LED in first switch controller, the source electrode of Q1
Ground connection, parallel resistance R20 and R25, resistance R20 connect the grid of Q1 with the common end of R25 between the drain electrode and source electrode of Q1, Q1's
Grid is connect with 5 feet of MCU controller U3 in color temperature controlling circuit；The drain electrode of metal-oxide-semiconductor Q2 and second in second switch controller
The cathode connection of group LED, the source electrode ground connection of Q2, parallel resistance R22 and R24 between the drain electrode and source electrode of Q2, resistance R22 and R24
Common end connection Q2 grid, the 6 feet connection of MCU controller U3 in the grid and color temperature controlling circuit of Q2.
First group of LED is warm white lamp bead composition, and second group of LED is cool white light lamp bead composition.
Described switch S1, S2, S3 are off-state, and MCU controller U3 is exported the in 100% duty ratio to metal-oxide-semiconductor Q1
One group of LED is all lighted；Switch S1, S2, S3 are closed state, and MCU controller U3 is exported in 100% duty ratio to metal-oxide-semiconductor Q2
Second group of LED is all lighted；It is divided into off-state in the middle part of switch S1, S2, S3 and part is closed state, MCU controller U3
It exports respectively to Q1 and Q2, two groups of LED colour mixtures shine.
When two groups of LED colour mixtures shine, the shut-in time of metal-oxide-semiconductor Q1 and Q2 are asynchronous.
Control circuit provided by the utility model can individually be adjusted colour temperature, can also be the case where not changing colour temperature
Lower realization light modulation, the light modulation that can satisfy color temperature constant application uses, and the adjustable range of colour temperature is wide, to colour mixture color
When temperature is dimmed, scintillation can occur to avoid LED lamp bead.
The utility model is further elaborated below by way of the drawings and specific embodiments.
Detailed description of the invention:
Fig. 1 is the schematic block circuit diagram of the present embodiment；
Fig. 2 is the circuit diagram of the present embodiment；
Fig. 3 is color temperature change table of the embodiment neutral color temperature between 2700K-5000K under the control of MCU controller；
Fig. 4 is in the prior art to two groups of LED pulse width modulating signal figures；
Fig. 5 is in the present embodiment to two groups of LED pulse width modulating signal figures.
Specific embodiment:
A kind of control circuit that colour temperature can be adjusted individually with light modulation is detailed in Fig. 1 to Fig. 5, including controllable silicon dimmer, light modulation
The different LED of constant-current drive circuit, chip power supply circuit, the color temperature controlling circuit for adjusting duty ratio, two groups of colour temperatures and
Two switch controllers.For ease of description, two groups of LED are respectively first group of LED and second group of LED, two switch controllers point
It Wei not first switch controller and second switch controller.The connection relationship of foregoing circuit is as shown in Figure 1, controllable silicon dimmer
Input terminal connects city's low frequency ac, and the output end of controllable silicon dimmer is divided into two-way, all the way with light modulation constant-current drive circuit
The input terminal of input terminal connection, another way and chip power supply circuit connects；Dim the two-way output end difference of constant-current drive circuit
It being connect with two groups of LED, the output end of chip power supply circuit and the input terminal of color temperature controlling circuit connect, and the two of color temperature controlling circuit
Road output end is connect with two switch controllers respectively, and two switch controllers are separately connected two groups of LED.
Above-mentioned physical circuit figure is detailed in Fig. 2, wherein light modulation constant-current drive circuit uses light adjusting circuit in the prior art, it is main
It to include over-voltage over-current protection circuit, current rectifying and wave filtering circuit, RC holding circuit and conversion switch.Controllable silicon dimmer passes through
It dims constant-current drive circuit and realizes light modulation.
Chip power supply circuit provides power for color temperature controlling circuit, using constant current mode, it is ensured that in the whole of controllable silicon light modulation
Constant voltage and current can be exported to color temperature controlling circuit during a, and therefore, color temperature controlling circuit includes rectifier diode
D2, constant current tube U1 and zener diode DZ1, the anode of the input terminal connection rectifier diode D2 of electric current, rectifier diode D2's
Cathode passes through 1 foot of resistance R8 connection constant current tube U1, and 2 feet of constant current tube U1 wherein connect the input of color temperature controlling circuit all the way
End, the 2 foot another ways of constant current tube U1 are grounded by capacitor C9；3 feet of constant current tube U1 are connected to zener diode by resistance R13
The anode tap of the cathode of DZ1, zener diode DZ1 is connected with the ground terminal of capacitor C9, the cathode terminal connection of zener diode DZ1
To the ungrounded end of capacitor C9, the cathode terminal of rectifier diode D2 is grounded by electrolytic capacitor CE4.Rectifier diode D2 will be inputted
AC rectification at direct current, constant current tube U1 exports constant electric current, and zener diode DZ1 and capacitor C9 can ensure that output is steady
Fixed voltage and current is powered to color temperature controlling circuit, and electrolytic capacitor CE4 is filtered the voltage and current after rectification.
Color temperature controlling circuit includes MCU controller U3, switch, resistance and capacitor, the model of MCU controller U3
BP3256C.1 foot of MCU controller U3 is wherein connected with the 2 foot output ends of constant current tube U1 in chip power supply circuit all the way, MCU control
The 1 foot another way of device U3 processed is connected by capacitor C10 with 8 feet of U3, and 2 feet of MCU controller U3 pass through resistance R21 and U3 all the way
1 foot be connected, the 2 foot another ways of U3 are connect with switch S1 input terminal, and 3 feet of U3 are wherein all the way by 1 foot of resistance R23 and U3
Connection, the 3 foot another ways of U3 are connect with the input terminal of switch S2, and 4 feet of U3 are hanging, 5 feet and the first switch controller of U3
Input terminal connection, 6 feet of U3 are connect with the input terminal of second switch controller, and 7 feet of U3 wherein pass through resistance R19 and U3 all the way
The connection of 1 foot, the 7 foot another ways of U3 connect with the input terminal of switch S3, and the output end of switch S1, switch S2 and switch S3 connect
Ground, the 8 feet ground connection of U3.MCU controller U3 exports different duty to subsequent by controlling the closing or opening of each switch
Two groups of switch controllers, to adjust the colour temperature of two groups of LED connecting with switch controller.Capacitor C10 can be to being input to
Voltage and current on MCU controller U3 is filtered.
Every group of switch controller includes metal-oxide-semiconductor and resistance, wherein in first switch controller the drain electrode of metal-oxide-semiconductor Q1 with
The cathode connection of first group of LED, the source electrode ground connection of Q1, parallel resistance R20 and R25 between the drain electrode and source electrode of Q1, resistance R20 and
The common end of R25 connects the grid of Q1, the 5 feet connection of MCU controller U3 in the grid and color temperature controlling circuit of Q1；Second switch
The drain electrode of metal-oxide-semiconductor Q2 is connect with the cathode of second group of LED in controller, the source electrode ground connection of Q2, between the drain electrode and source electrode of Q2 simultaneously
Join resistance R22 and R24, resistance R22 connects the grid of Q2 with the common end of R24, and MCU is controlled in the grid and color temperature controlling circuit of Q2
6 feet of device U3 processed connect.
For ease of description in the present embodiment to the adjusting of colour temperature, first group of LED in the present embodiment use colour temperature for
The warm white lamp bead of 2700K is constituted, and second group of LED uses colour temperature to constitute for the cool white light lamp bead of 5000K, and controllable silicon dimmer is adopted
With TRIAC light modulator.MCU controller U3 is as shown in Figure 3 to the adjusting of output duty cycle and the change of colour temperature: when MCU is controlled
Switch S1, S2 and S3 of device U3 control are that 0(is in an off state) when, MCU controller exports 100% duty ratio to first
On the metal-oxide-semiconductor Q1 of switch controller, first group of LED lamp bead is enabled all to light, the colour temperature shown at this time is the warm white colour temperature of 2700K
(CCT indicates correlated colour temperature in Fig. 3)；When switch S1, S2 and S3 of MCU controller U3 control are that 1(is in closed state)
When, MCU controller exports in 100% duty ratio to the metal-oxide-semiconductor Q2 of second switch controller, enables second group of LED lamp bead whole point
Bright, the colour temperature shown at this time is the cool white colour temperature of 5000K；When the control of MCU controller switch S1, S2 and S3 simultaneously for 1 or
It is not in closed state for the i.e. some of 0(simultaneously, some is in an off state) when, MCU controller exports certain duty ratio respectively
To Q1 and Q2, two groups of LED colour mixtures is enabled to shine.When using colour mixture colour temperature, duty ratio can be set in advance by MCU controller
It is fixed, enable two groups of LED lamp bead high frequencies alternately shine.Colour mixture light modulation is carried out to two groups of LED using controllable silicon dimmer in the prior art
When, it may appear that the metal-oxide-semiconductor in two groups of switch controllers as shown in Figure 4 will lead to electricity the case where simultaneously closing off in critical point
Road open circuit, so that controllable silicon dimmer be enabled to occur lamp bead scintillation in dimming process.And in the present embodiment, it can exist in advance
It is set in MCU controller, enables the metal-oxide-semiconductor shut-in time in two groups of switch controllers inconsistent (as shown in Figure 5), in this way may be used
To enable in entire circuit always with the presence of electric current is maintained, the generation of lamp bead flashing is also avoided.
When using colour mixture colour temperature, colour temperature can be adjusted in advance in the present embodiment, be adjusted to desired color
Wen Hou, then dimmed by dimming constant-current drive circuit, keep the constant of colour temperature.The color temperature adjustment model provided in the present embodiment
It encloses larger, the duty ratio of different outputs can be set freely to control colour mixture colour temperature.Wherein three kinds of colour mixture colour temperatures are given in Fig. 3
The case where: the first, switch S1 and S2 are 0(off-state), switch S3 is 1(closed state), MCU controller output 79%
It in duty ratio to Q1, exports in 21% duty ratio to Q2, two groups of LED colour mixture colour temperatures are 3000K at this time；Second, switch S1 and S3
It is 0(off-state), switch S2 is 1(closed state), MCU controller exports in 53% duty ratio to Q1, exports 47% duty
Than on Q2, two groups of LED colour mixture colour temperatures are 3500K at this time；The third, switch S2 and S3 are 0(off-state), switch S1 is
1(closed state), MCU controller exports in 32% duty ratio to Q1, exports in 68% duty ratio to Q2, at this time two groups of LED colour mixtures
Colour temperature is 4000K.Above-mentioned the case where having included three kinds of different duties, user can according to need free setting, real
Existing any adjusting of the colour temperature between 2700K-5000K.
Above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, those of ordinary skill in the art couple
Other modifications or equivalent replacement that the technical solution of the utility model is made, without departing from technical solutions of the utility model
Spirit and scope should all cover in the scope of the claims of the utility model.
Claims (10)
1. the control circuit that a kind of colour temperature and light modulation can be adjusted individually, it is characterised in that: including controllable silicon dimmer, light modulation constant current
Different LED and two of driving circuit, chip power supply circuit, the color temperature controlling circuit for adjusting duty ratio, two groups of colour temperatures
The input terminal of switch controller, the controllable silicon dimmer connects city's low frequency ac, and the output end of controllable silicon dimmer is divided into
Two-way is connect with the input terminal of light modulation constant-current drive circuit all the way, the input terminal connection of another way and chip power supply circuit；Light modulation
The two-way output end of constant-current drive circuit is connect with two groups of LED respectively, the output end and color temperature controlling circuit of chip power supply circuit
Input terminal connection, the two-way output end of color temperature controlling circuit connect with two switch controllers respectively, two switch controllers
It is separately connected two groups of LED.
2. a kind of colour temperature according to claim 1 and the control circuit that can individually adjust of light modulation, it is characterised in that: it is described can
It controls silicon light modulator and uses TRIAC light modulator.
3. the control circuit that a kind of colour temperature according to claim 1 and light modulation can be adjusted individually, it is characterised in that: the tune
Light constant-current drive circuit includes over-voltage over-current protection circuit, current rectifying and wave filtering circuit, RC holding circuit and conversion switch.
4. the control circuit that a kind of colour temperature according to claim 1 and light modulation can be adjusted individually, it is characterised in that: the core
Piece power supply circuit includes rectifier diode D2, constant current tube U1 and zener diode DZ1, and the input terminal of electric current connects rectifier diode
The anode of D2, the cathode of rectifier diode D2 pass through 1 foot of resistance R8 connection constant current tube U1, and 2 feet of constant current tube U1 are wherein all the way
The input terminal of color temperature controlling circuit is connected, the 2 foot another ways of constant current tube U1 are grounded by capacitor C9；3 feet of constant current tube U1 pass through
Resistance R13 is connected to the cathode of zener diode DZ1, and the anode tap of zener diode DZ1 is connected with the ground terminal of capacitor C9, surely
The cathode terminal of pressure diode DZ1 is connected to the ungrounded end of capacitor C9, and the cathode terminal of rectifier diode D2 passes through electrolytic capacitor CE4
Ground connection.
5. the control circuit that a kind of colour temperature according to claim 4 and light modulation can be adjusted individually, it is characterised in that: the color
Temperature control circuit includes MCU controller U3, switch, resistance and capacitor, and 1 foot of MCU controller U3 is wherein powered with chip all the way
The 2 foot output ends of constant current tube U1 are connected in circuit, and the 1 foot another way of MCU controller U3 is connected by capacitor C10 with 8 feet of U3,
2 feet of MCU controller U3 pass through resistance R21 all the way and are connected with 1 foot of U3, and the 2 foot another ways of U3 are connect with switch S1 input terminal,
3 feet of U3 are wherein connected by 1 foot of resistance R23 and U3 all the way, and the 3 foot another ways of U3 are connect with the input terminal of switch S2, U3
4 feet it is hanging, 5 feet of U3 are connect with the input terminal of one of switch controller, 6 feet of U3 and another switch controller
Input terminal connection, 7 feet of U3 are wherein connected by 1 foot of resistance R19 and U3 all the way, the 7 foot another ways of U3 and switch S3's
Input terminal connection, the output end of switch S1, switch S2 and switch S3 are grounded, the 8 feet ground connection of U3.
6. the control circuit that a kind of colour temperature according to claim 5 and light modulation can be adjusted individually, it is characterised in that: described
The model BP3256C of MCU controller U3.
7. the control circuit that a kind of colour temperature according to claim 5 and light modulation can be adjusted individually, it is characterised in that: described two
Group switch controller is respectively first switch controller and second switch controller, each switch controller include metal-oxide-semiconductor and
Resistance, the drain electrode of metal-oxide-semiconductor Q1 is connect with the cathode of first group of LED in first switch controller, the source electrode ground connection of Q1, the drain electrode of Q1
The parallel resistance R20 and R25 between source electrode, resistance R20 connect the grid of Q1, the grid of Q1 and colour temperature control with the common end of R25
The 5 feet connection of MCU controller U3 in circuit processed；The drain electrode of metal-oxide-semiconductor Q2 connects with the cathode of second group of LED in second switch controller
It connects, the source electrode ground connection of Q2, parallel resistance R22 and R24, resistance R22 connect Q2 with the common end of R24 between the drain electrode and source electrode of Q2
Grid, the 6 feet connection of MCU controller U3 in the grid and color temperature controlling circuit of Q2.
8. a kind of colour temperature according to claim 7 and the control circuit that can individually adjust of light modulation, it is characterised in that: described the
One group of LED is warm white lamp bead composition, and second group of LED is cool white light lamp bead composition.
9. the control circuit that a kind of colour temperature according to claim 7 and light modulation can be adjusted individually, it is characterised in that: described to open
Closing S1, S2, S3 is off-state, and MCU controller U3 is exported first group of LED whole point in 100% duty ratio to metal-oxide-semiconductor Q1
It is bright；Switch S1, S2, S3 are closed state, and MCU controller U3 exports in 100% duty ratio to metal-oxide-semiconductor Q2 that second group of LED is complete
It lights in portion；Be divided into off-state in the middle part of switch S1, S2, S3 and part be closed state, MCU controller U3 exported respectively to Q1 and
On Q2, two groups of LED colour mixtures shine.
10. the control circuit that a kind of colour temperature according to claim 9 and light modulation can be adjusted individually, it is characterised in that: described
When two groups of LED colour mixtures shine, the shut-in time of metal-oxide-semiconductor Q1 and Q2 are asynchronous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201820767403.2U CN208273300U (en) | 2018-05-22 | 2018-05-22 | A kind of control circuit that colour temperature can be adjusted individually with light modulation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820767403.2U CN208273300U (en) | 2018-05-22 | 2018-05-22 | A kind of control circuit that colour temperature can be adjusted individually with light modulation |
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| CN208273300U true CN208273300U (en) | 2018-12-21 |
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| CN201820767403.2U Active CN208273300U (en) | 2018-05-22 | 2018-05-22 | A kind of control circuit that colour temperature can be adjusted individually with light modulation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108366469A (en) * | 2018-05-22 | 2018-08-03 | 浙江阳光美加照明有限公司 | A kind of control circuit that colour temperature can be adjusted individually with light modulation |
| CN109640459A (en) * | 2019-01-29 | 2019-04-16 | 无锡奥利杰科技有限公司 | A kind of switch under the conditions of the Linear Driving based on LED illumination is mixed colours temperature control circuit |
| CN109673086A (en) * | 2019-02-15 | 2019-04-23 | 浙江阳光美加照明有限公司 | The LED drive control circuit of compatible Wireless Light modulating toning and switch on wall toning |
| EP3768046A1 (en) * | 2019-07-19 | 2021-01-20 | Wuxi ORG Microelectronics Co., Ltd | Circuit for linearly driving led illumination based on mcu-controlled color temperature switching |
| EP3813491A1 (en) * | 2019-10-22 | 2021-04-28 | Leedarson Lighting Co., Ltd. | Lighting apparatus |
-
2018
- 2018-05-22 CN CN201820767403.2U patent/CN208273300U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108366469A (en) * | 2018-05-22 | 2018-08-03 | 浙江阳光美加照明有限公司 | A kind of control circuit that colour temperature can be adjusted individually with light modulation |
| CN109640459A (en) * | 2019-01-29 | 2019-04-16 | 无锡奥利杰科技有限公司 | A kind of switch under the conditions of the Linear Driving based on LED illumination is mixed colours temperature control circuit |
| CN109673086A (en) * | 2019-02-15 | 2019-04-23 | 浙江阳光美加照明有限公司 | The LED drive control circuit of compatible Wireless Light modulating toning and switch on wall toning |
| CN109673086B (en) * | 2019-02-15 | 2024-03-05 | 浙江阳光美加照明有限公司 | LED drive control circuit compatible with wireless dimming and color mixing and wall switch color mixing |
| EP3768046A1 (en) * | 2019-07-19 | 2021-01-20 | Wuxi ORG Microelectronics Co., Ltd | Circuit for linearly driving led illumination based on mcu-controlled color temperature switching |
| EP3813491A1 (en) * | 2019-10-22 | 2021-04-28 | Leedarson Lighting Co., Ltd. | Lighting apparatus |
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